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NASA has warned that 2012 marked yet another year in a global warming trend, with the last decade marking some of the warmest years on record.

NASA has warned that 2012 marked yet another year in a global warming trend, with the last decade marking some of the warmest years on record.

Research from the space agency has shown that the average temperature in 2012 was 58.3 degrees Fahrenheit (14.6 degrees Celsius), which is 1.0 degree Fahrenheit (0.6 degrees Celsius) warmer than the baseline temperature of the mid-20th Century.

Further analysis shows that the average global temperature has risen by roughly 1.4 degrees Fahrenheit (0.8 degrees Celsius) since 1880. That number might not sound significant, but it is enough to dramatically change the environments we live in, resulting in potentially extreme shifts in weather.

While the scientists acknowledged that there will always be fluctuations in the average temperature, thanks to changes in weather patterns, they warned that the continued increase in greenhouse gas levels in our planet's atmosphere means that each decade will be warmer than the last.

2012 was ranked as the ninth hottest year since 1880, while most of the other top ten occurred since 2000. The US, in particular, experienced one of its warmest summers in 2012.

Measurements from the National Oceanic and Atmospheric Administration's Mauna Loa Observatory showed that carbon dioxide levels in the atmosphere had risen to 390 parts per million, up from the 315 parts per million measurement in 1960 and 285 parts per million in 1880.

“One more year of numbers isn't in itself significant,” said Gavin Schmidt, climatologist at NASA's Goddard Institute for Space Studies (GISS). “What matters is this decade is warmer than the last decade, and that decade was warmer than the decade before. The planet is warming. The reason it's warming is because we are pumping increasing amounts of carbon dioxide into the atmosphere.”